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Q. Two ropes are attached to a heavy box to pull it along the floor. One rope applies a force of 438 newtons (N) in a direction due west; the other applies a force of 402N in a direction due south. As we will see later in the text, force is a vector quantity. (a) How much force should be applied by a single rope and (b) in what direction (as a positive angle relative to due west), if it is to accomplish the same effect as the two forces added together?
Dan is gliding on his skateboard at 2.00m/s. He rapidly jumps backward off the skateboard, kicking the skateboard forward at 8.00m/s (as measured by an observer on the ground). Dan's mass is 60.0kg and the skateboard's mass is 7.00kg.
suppose that both cars start at the same point, how much sooner does the faster car arrive at a destination 35 km away.
find the childs speed at the lowest point.An elevator has mass 610 kg, not including passengers. The elevator is designed to ascend, at constant speed, a vertical distance of 20.0 m (five floors) in 17.0 s and it is driven by a motor that can provi..
A trapeze artist swings in simple harmonic motion with a period of 4.2s. The acceleration of gravity is 9.81m/s2. Compute the length of the cables supporting the trapeze.
A snowball rolls off a barn roof that slopes downward at the angle of 40 ^circ. The edge of the roof is 14.0 {rm m} above the ground, and the snowball has a speed of 7.00 {rm m/s} as it rolls off the roof. Ignore air resistance.
Determine the coefficient of kinetic friction between the block & the table.
There is a beam that weighs 1500 kilograms and is twenty meters in length. It has a 15000 kilogram mass on the right side, five meters from the center of gravity. obtain the net tension of each brace that is holding up the beam on both sides.
imagine a linebacker collides with a stationary quarterback and they become entangled. what will happen to the velocity of the linebacker-quarterback system if momentum is conserved.
A pair of speakers separated by 0.820 m are driven by the same oscillator at a frequency of 652 Hz. An observer originally positioned at one of the speakers begins to walk along a line vertical to the line joining the speakers.
Calculate the acceleration of the arrow in the bow.
An object is 17 mm in front of a converging lens, and the image is 3 mm behind the lens. What is the focal length of the lens? Reply In mm
After the ambulance passes, the observed frequency of the siren is 493 Hz. Conclude the ambulance's speeds from these observations.
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